FSHN 150 1st Edition Lecture 22Outline of Last LectureI. Functions of Protein II. Protein and Nitrogen balanceIII. Protein for EnergyIV. Dietary ProteinV. RDA of ProteinOutline of Current LectureI. Protein QualityII. Limiting Amino AcidsIII. Complimentary ProteinsCurrent LectureI. Protein QualityA. high quality complete (9 essential amino acids in correct proportions)B. low quality incomplete (limiting AA in correct proportions)C. All or none principle in protein synthesis- limiting amino acidD. Complimentary proteins solve thisE. Biological value/ Protein Digestibilityi. compares the amount of N retained in the bodyii. in general animal sources used more N than plant sourcesiii. WE UTILIZE ANIMAL PROTEIN BETTERII. Limiting Amino AcidsA. Don’t have enough of a certain AA to make the protein you are trying to makeIII. Complimentary ProteinsA. 2 low quality proteins combinedi. legumes and grains, beans and nuts/seeds, nuts and veggies, grains and veggiesB. Is a high protein harmful?i. high intake of kcals and sat fatii. low in plant food(fiber), vitamins and phytochemicalsiii. often converted to fativ. can stress kidney and liverv. high calcium lossvi. two times the RDA is fine!Iclickers- These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Athlete eats as much as hes supposed to- protein synthesis is where his protein is goingConsumes 25g protein/nitrogen looses 40g nitrogen-glucose synthesis and energyOver consumption of kcal=protein will go to fat synthesisHealthy 9 year old boy nitrogen/ protein balance- N in=15g, N out=5gRetains more nitrogen egg vs rice=eggsProtein quality is determined by AA
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